Type-writer.



J. W. PAUL.

TYPE WRITER.

APPLICATION FILED JULY 6, 1806..

Patented Apr. 12, 1910.

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TYPE WRITER. APPLIUATION FILED JULY 5,1906.

, Patented Apr-12,1910.

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J. W. PAUL.

' TYPE WRITER. -APPLIOA'I'ION PILED' ULY 6,1906.

Patented Apr. 12, 1910.

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Specification of Letters Patent.

Patented Apr. 12, 1910.

Application filed July 5, 1906. Serial No. 324,903.

To all whom 'it may concern:

Be it known that I, JOHN W. PAUL, a citizen of the United States, residing at Kittanning, in the county of Armstron and State of Pennsylvania, have invente new and useful Improvements in Type-Writers, of which the following is a specification.

T his invention relates to typewriters and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

More particularly the invention relates to improvements in the type bar action and the parts immediately connected therewith.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a side elevation of the type bar action. Fig. 2, a plan view of the type basket and parts of the type bar action, part of the basket being broken away to better show construction. Fig. 2 shows a front view of the guide 7, through which the rod E extends. Fig. 3 is a side elevation of the basket, part of the frame being in section to show the method of hanging the basket. Fig. 4, a plan of the basket showin additional parts. Fig. 5, a section on the %ine 5-5 in Fig. 4. Figs. 6, and 7 show side elevations of alternative constructions of type bar actions.

A marks the type bar; B, the pivot for the same. The type bars are mounted in the type basket C which forms a segment and al the type bars strike to acommon center or printing point on the platen N. The type bars are mounted between the ide plates 0 and the pivot B is formed y a curved rod, :1 single rod forming a pivot for all the type bars. The type basket is pivoted at c and the stop (1' of the type asket normally rests on the cross piece F. \Vhen' however the basket is shifted it is lifted from this point of support as shown in Fig. 3. The guide plates 0 have the extensions and arranged between these extensions are the rock lovers 1), one for each type bar. Those rock lovers are pivotully mounted on the rod (Z, a single rod forming the pivot for the rock levers in the same manner as the rod 13 forms the pivot for the type bars.

11 the preferred construction the heel of the type bar A is roviclcd with a variable gear a and the mo lover is provided with the variable "our J. This variable gear is so constructed that with the initial-movement of the rock lever, the smaller gear d of the variable gear acts upon the larger gear a on the type bar, on as the movement progresses the larger gear (1 of the rock lever D is brought into mesh with the smaller gear a of the type bar, thus there is a marked acceleration of the type bar as the rock lever D aetuates it. Not only is this acceleration made possible by the rock lever D but in as much as it is carried between the guide plates 0' and has a pivot the axis of which is parallel to the pivot of the type bar on which each lever acts, the type bar is relieved of all side strain, so that it may be more easily kept in alineinent.

I prefer to actuate the rock lever D by means of the rod E which is pivotally connected to the rock lever D. In the referred construction also, the rod E has its ront end slidingly mounted in the cross piece f which is secured to the auxiliary frame F. The cross piece f is provided with a series of perforations for this purpose, the perforations being in line so that the front ends of the rods are brought into horizontal alinement. In either instance the manner of mounting the front end relieves the part to which the rear end is connected of some of the strains incident to actuating the rod. It also provides a more convenient method for mounting the t pe bar springs G. These are in the form 0 a coil mounted directly around the rod E and are located between the guide plate f and the clamp H, which is selcitu'ali to the rod in the rear of the guide The rod E is preferably actuated by mechanism operating as a reverse tog 'le, that is a toggle operating upon the flexing of the links rather than by the straightening of the toggle, and, as shown, comprises the link I which is booked in the erforation h in the clamp H and the per oration j in the rock lever J. All the rock levers J are mounted on a rod j. A link K is hooked into a perforation in the lever J and the perforation Z in the key lever L. This reverse toggle mechanism as well as the vuriuble gear is arranged to effect acceleration in the movement of the. type bar. The key lover L is pivoted at l and has its upward movement limited by the stop 1'. It is provided with the fin er piece L.

As before stator the bushel. is pivoted atc and this pivot c is in line with the normal position of the pivot formed between basket to the position shown dotted lines 1 inFig. 3. A reversing mechanism 1s shown in the drawings but as this forms no part and later am the has secured to the frame. A link m connects the bell crank lever with the shift lever M.

n the depression of the shift lever, the lfcmnk lcvcr will be actuated to raise the of the present Invention it is not further described.

The auxiliary frame is mounted in the main frame F in any desired manner. As shown, it is secured to the main frame by means of the lugs f.

In the alternative constructlon shown m Fig. 6, the variable gear instead of hein of two distinct sizes forms segments a and d of elliptical gears. Otherwise the parts opcrate in the manner shown in the preferred construction.

In the alternative construction shown in Fig. 7, the heel of the type bar is rovidcd with a cam slot a. The rock lever is provided with the pin (i for operatin this cam slot. As the rock lever swings, 1116 arm of the lever formed by the heel of the type bar is shortened so as to effect acceleratlon of the 9 bars.

W at I claim as new is:-

1. In a typewriter, the combination-of a platen; a ty c bar arranged for a front strike on sai platen; means for actuating the type bar; a sliding rod for actuating said means; said rod bem slidingly mounted at the front and pivota ly connected with said means at the rear and horizontally arranged; a guide for said sliding rod arranged below the normal position of said bar; a finger piece; and means actuated by th:I finger piece for actuating said sliding ro 2. In a typewriter, the combination of a platen; a ty e bar arranged for a front strike on said platen; means for actuating said type bar, said means being arranged to accelerate the movement of the type bar as it progresses toward the platen; a sliding rod for actuating said means, said rod being slidingiy mounted at the front and pivotally connected with said means at the rear and horizontally arranged; a guide for said sliding rod arranged below the normal position of said bar; a finger piece; and means actuated by the finger piece for actuating said sliding rod.

3. In a typewriter, the combination of a platen; a type bar arranged for a front strike on said platen; a slid iuo rod for actusting said type bar, said rod Being slidingly mounted at t 1c front and pivotally mounted at the rear and horizontally arranged; means link, taaww w, is. .h itail thcre ism-movement. of the -key- .fveisfl' A hell, crank lever M 15 connected .with. the basket by means of the pln 1:. It mounted on the pin j the pm j= bemg for conveying the movement of said rod to gold. typcbar; a guide supporting said slidlug rod-at the treat, the guide bein arranged below the annual Jositiou 0 said type bar; a finger piece; an moans connected to said finger piece and acting on said sliding rod between its pivotal support at the rear, and the (guide at the front in all positions of the re for conveying the movement of the finger piece to the rod.

4. In a typewriter, the combination of a platen; a type basket arranged to permit a mountmg of type bars for a front strike on said platen; a plurality of type bars mounted in said basket; sliding rods horizontally arranged for actuating said type bars; means for conveying the movement of said rod to said type bar; guides for the front ends of said rods, said guides holding the front ends of said rods in a horizontal plane; finger pieces; and means actuated by the finger pieces for actuating said rods.

5. In a typewriter, the combination of a platen; a type bar arranged for a front strike on said platen; a sliding rod for actuating said type bar; means for conveying the movement of said sliding rod to said type bar; a spring mounted on said sliding rod for returning the type bar; a finger piece; and means actuated by the finger piece for actuating said rod.

6. In a typewriter, the combination of a platen: a type bar arranged for a front strike on said platen; a sliding rod for actuating said type bar; means for conveying the movement of said sliding rod to said type bar; a guide for said sliding rod arranged below the normal position of said tvpe bar; a finger piece; means actuated by the finger piece for actuating said sliding rod; and a spring for returning the type bar arranged on said rod and abutting against said guide.

7. In a typewriter, the combination of the platen; a series of pivoted type bars ar ranged for a front strike on said platen; a plurality of rocking levers having axes parallel to the axes of the pivots of the type ars and arranged to actuate said type bars; rods horizontall arranged and pivotally connected to sai rocking levers; and means acting through said rods for actuating said rocking levers.

8. In a typewriter, the combination of the platen; a pivoted type bar arranged for a front strike on said platen; a rocking lover having its axis parallel to the axis of the pivot of the type bar and arranged to actuate said type bar; a rod pivotally connected to said rocking lever and having its front end slidingly mounted; and means acting through said rod for actuating said rocking lover.

9. In :1 tnamvritcr, the combination of the platen; a series of pivoted type bars arranged for a front strike" on said platen; a plurality of 100k"!!! levers having axes para lel to the axes o the pivots ot the type bars and arranged to actuate said type bars: rods pivotally connected to said rocking levers, the front ends of said rods being slidingly mounted; guides for the front of said rods arranged to hold smd rods in alinement; and means acting through said rods for actuating said roe levers.

10. In a typewriter, the combination of a platen; a ivoted type bar arranged for a front stri e on said platen; a rocking lever for actuating said type bar; a rod pivotally connected with said rocking lever and having its front end slidingly mounted; and mechanisms comprising devices operatipxg1 as a reverse toggle for actuating sald I 11. In a typewriter, the combination of a platen; type bars arranged for a front strike on said platen; a basket for said type bars; a pivotal connect-ion for said basket; rock levers for actuating said type have; rods pivotally connected to said rock levers and having their front ends slidingly mounted and in line; and mechanisms comprising devices opcrnting as reverse toggles for actuating said rods.

12. In a typewriter, the combination of a platen; type bars arranged for a front strike on said platen; a basket for said type bars; a pivotal connection for said basket; rock levers for actuating said type bars; rods pivotally connected to said rock levers and having their front ends slidingly mounted and in line; and mechanisms comprising devices 0 crating as reverse toggles for actuatin said rods, the joints of said reverse togg es being normally in line and coincidentwith the pivotal connection of the basket.

13. In a typewriter, the combination of a platen; type bars arranged for a front strike on said platen; a basket for said type bars; a pivotal connection for said basket; rock levers for actuating said type bars; rods pivotally connected to said rock levers and having their front ends slidingly mounted and in line mechanisms comprising devices operating as reverse toggles for actuating said rods, links secured intermediate of the ends of the devices operating as reverse toggles, and connecting said dcvices with key levers; and said kev levers.

14. In a typewriter, the combination of the type bar A; the pivot B on which said ty e bar is mounted; a rock lever for actuatmg said type bar; the pivot D for said rock lever, said pivot D having its axis Earallel to the axis of the pivot B: the rod plvotally connected to the rock lever D; the ide f in which the front end of the rod is slidingly mounted; the clamp H arranged on the rod E; ed between the clamp It and the guide f; devices operating as a reverse toggle, comprising the swinging lever J, and the link l connecting said lever with the clamp 11; the link K extending from the lever J to a key lever; and the key lever.

15. In a typewriter, the combination of a platen; a type bar arranged for a frontstrike on said platen, the heel of said type bar having the variablegcar formed in two distinct radii a, and a; the rock lever D for actuating said type bar and having a variable gear formed in two distinct diameters and d for acting with the gears a and a res actively; and means for actuating the mo ring lever.

16. In a typewriter, the combination of the platen; a. type bar arranged for a front strike on said platen; a. rocking lever for actuatin said type bar, said type bar and rocking fiver being provided with a variable gear through which said rocking lever actnatcs said type bar; and mechanism for actuating said rocking lever comprising devices operating as a reverse toggle.

17. In a typewriter, the combination of a platen; a type bar arranged for a. front strike on said platen, the heel of said type bar having the variable gear formed in two distinct radii a and a; the rock lever D for actuating said type bar and having a variable gear forme in two distinct radii d and d for acting with the gears a and a respectively; a rod pivotally connected with said rocking lever and having its front end slidingly mounted; and means for actuating said rod.

18. In a typewriter, the combination of a platen; a type bar arranged for a front strike on said platen; a rocking lever for actuating said type bar, said type bar and rocking lever bem provided with a variable gear througli which said rocking lever actuates said type bar; and mechanism comprising devices operating as a reverse toggle for actuating said rod.

19. In a typewriter, the combination of the type bar A with a variable gear having two distinct radii a and a; the ivot B for said type bar; the rocking lever provided with the variable gear having two distinct radii "l and d for acting upon the gears (f and a to actuate the type bar; the pivot d for the lever D having its axis parallel to the axis of the pivot B; the rod in pivotally connected to the rock lever; the guide f in which the front end of the rod E is slidingly mounted; the clamp II on the rod E; the spring G mounted between the clamp H and guide I; the swinging lever J; the link I connectmg said lever J with the clamp H; the key lever L; and the link K connecting the key lever with the swinging lever J.

20. In a typewriter, the combination of a the spring G mount which i :t je mechanism connected to said rod at the rear ofsuid guide for actuating said rod; and

121. In a typewriter,

on *saidwplaten; a" sliding rod tor tutin' isiiidt be!" u, rdsthrou h. 'ftonty ilds of said rods sli e;

a sprin arranged on the rod between said point 0 connectlon and stud guide.

the combination of laten; a series of type bars-arranged for .a y a front strike on said platen; a basket in which said type bars are mounted; adgivot for said basket; a series of sliding ro for actuating said type bars the front ends of in alinement; and

want; i

and rock levers pivoted between said extensums operatwely connected with and arranged to actuate said t y e. bars.

23. In a typewriter, tie combination of a latcn; a series of type bars arranged for a front strike on said platen; abasket having a series of guide plates for said type bars and between which said type bars are pivoted; extensions on said guide plates; and rock levers pivoted between said extenslons operatively connected with and arranged to actuate said type burs, said rock levers and type bars being provided with ears through which the actions of the rock- Lug levers are communicated to the type are.

In testimony whereof I have hereunto set In band in the presence of two subscribing witnesses.

JOHN W. PAUL. Witnesses:

H. 0. Loan, CLARK M. Conn. 

